Mack Trucks, Inc.: Engine and Engine Cooling › Engine › Engine Control Module (ecu/Ecm)
Mack Trucks, Inc. reported this defect to federal regulators on Aug 9, 2022 and put the number of vehicles at risk at 150. The repair is free for as long as the recall stands.
The defect
Mack Trucks, Inc. (Mack) is recalling certain 2023 MD6/7 trucks. The engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down.
The risk
An unexpected engine shut down can increase the risk of a crash.
The remedy
Cummins will replace the ECM, free of charge. Owner notification letters were mailed on September 27, 2022. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0438.
1 model year covered
Newest first| Vehicle | Complaints | Recalls | Fires | Crashes |
|---|---|---|---|---|
| 2023 Mack MD | 1 | 2 | 0 | 0 |
What this page is, and what to do next
A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.
This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 22V606000.
Full record for the 2023 Mack MD → · Recalls carrying a do-not-drive advisory → · Where this data comes from →